A Comment or two on Holographic Dark Energy

Abstract

It has, quite recently, become fashionable to study a certain class of holographic-inspired models for the dark energy. These investigations have, indeed, managed to make some significant advances towards explaining the empirical data. Nonetheless, surprisingly little thought has been given to conceptual issues such as the composition and the very nature of the implicated energy source. In the current discourse, we attempt to fill this gap by the way of some speculative yet logically self-consistent arguments. Our construction takes us along a path that begins with an entanglement entropy and ends up at a Hubble-sized gas of exotic particles. Moreover, our interpretation of the dark energy turns out to be suggestive of a natural resolution to the cosmic-coincidence problem.

18 pages; (v2) an oversight in Section 2.1 is rectified and a few citations added

References in corpus (7)

• A Dark Energy Model Characterized by the Age of the Universe
• Dark Energy and Gravity
• Restoring Holographic Dark Energy in Brane Cosmology
• Some Issues Concerning Holographic Dark Energy
• Holographic Foam, Dark Energy and Infinite Statistics
• Fine Structure of Dark Energy and New Physics
• Holographic dark energy: quantum correlations against thermodynamical description

Cited by in corpus (6)

• Statefinder Diagnosis for Ricci Dark Energy
• Reconstructing Quintom from Ricci Dark Energy
• Origin of holographic dark energy models
• Reconstructing $f(R)$ Theory from Ricci Dark Energy
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• Ricci Dark Energy in Brans-Dicke theory